<template>
	<view  class="my-settle-container">
    <!-- 全选 -->
      <label class="radio" @click="changeAllState">
        <radio color="#C00000" :checked="isFullCheck"/><text>全选</text>
      </label>
      
      <!-- 合计 -->
      <view class="amount-box">
        合计:<text class="amount">￥{{checkedGoodsAmount}}</text>
      </view>
      
      <!-- 结算按钮 -->
      <view class="btn-settle" @click="settlement">
        结算({{checkedCount}})
      </view>
	</view>
</template>

<script>
  import { mapGetters,mapMutations,mapState } from 'vuex'
	export default {
		data() {
			return {
        // 倒计时的秒数
				seconds: 3,
        // 定时器的ID
        timer: null
			};
		},
    computed:{
      ...mapGetters('m_cart',['checkedCount','total','checkedGoodsAmount']),
      ...mapGetters('m_user',['addStr']),
      ...mapState('m_user',['token']),
      ...mapState('m_cart',['cart']),
      isFullCheck() {
        return this.total === this.checkedCount
      }
    },
    methods:{
      ...mapMutations('m_cart',['updateAllGoodsState']),
      ...mapMutations('m_user',['updateRedirectInfo']),
      changeAllState() {
        this.updateAllGoodsState(!this.isFullCheck)
      },
      // 用户点击了结算按钮
      settlement() {
        if(!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
        
        if(!this.addStr) return uni.$showMsg('请选择收货地址！')
        
        // if(!this.token) return uni.$showMsg('请先登录！')
        if(!this.token) return this.delayNavigate()
        
        this.payOrder()
      },
      // 支付函数
      async payOrder(){
        // 1.创建订单
        // 1.1 组织订单的信息对象
        const orderInfo = {
          // order_price: this.checkedGoodsAmount,
          order_price: 0.01,
          consignee_addr: this.addStr,
          goods: this.cart.filter(x => x.goods_state).map(x => ({
            goods_id: x.goods_id,
            goods_number: x.goods_count,
            goods_price: x.goods_price
            }))
        }
        // 1.2 发起请求创建订单
        const {data: res} = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
        if(res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
        // 1.3 得到服务器响应的“订单编号”
        const orderNumber = res.message.order_number
        
        // 2. 订单预支付
        // 2.1 发起请求获取订单的支付信息
        const {data:res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder',{order_number:orderNumber})
        // 2.2 预付订单生成失败
        if(res2.meta.status !== 200) return uni.$showMsg('预付订单失败！')
        // 2.3 得到订单支付相关的必要参数
        const payInfo = res2.message.pay
        // console.log(payInfo);
        // 3. 发起微信支付
        // 3.1 调用 uni.requestPayment() 发起微信支付
        const [err,succ] = await uni.requestPayment(payInfo)
        // 3.2 未完成支付
        console.log(err);  //显示该函数requestPayment()无权使用
        if(err) return uni.$showMsg('订单未支付!1')
        // 3.3 完成了支付，进一步查询支付的结果
        const {data: res3} = await uni.$http.post('/api/public/v1/my/orders/chkOrder',{order_number:orderNumber})
        // 3.4 检测到订单未支付
        if(res3.meta.status !== 200) return uni.$showMsg('订单未支付!2')
        // 3.5 检测到订单支付完成
        uni.showToast({
          title: '订单支付完成！',
          icon:'success'
        })
      },
      // 延时导航到 my 页面
      delayNavigate(){
        this.seconds = 3
        
        this.showTips(this.seconds)
        
        this.timer = setInterval(() => {
          this.seconds--
          
          if(this.seconds <= 0) {
            clearInterval(this.timer)
            
            uni.switchTab({
              url: '/pages/my/my',
              success: () => {
                this.updateRedirectInfo({
                  openType: 'switchTab',
                  from:'/pages/cart/cart'
                })
              }
            })
            
            return
          }
          
          this.showTips(this.seconds)
        },1000)
      },
      // 展示倒计时的提示消息
      showTips(n) {
        uni.showToast({
          icon: 'none',
          title:'请登陆后再结算！'+ n +'秒之后跳转到登录页',
          mask:true,
          duration:1500
        })
      }
    }
	}
</script>

<style lang="scss">
.my-settle-container{
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background-color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  padding-left: 5px;
  
  .radio{
    display: flex;
    align-items: center;
  }
  .amount-box{
    .amount{
      color: #C00000;
      font-weight: bold;
    }
  }
  .btn-settle{
    background-color: #C00000;  
    height: 50px;
    color: white;
    line-height: 50px;
    padding: 0 10px;
    min-width: 100px;
    text-align: center;
  }
}
</style>
